JPH0125268Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Field> The present invention relates to a food storage with a deodorizing device, such as a refrigerator or a constant temperature storage.

<Prior art> Generally, when food is stored in a refrigerator, various odors are emitted from the food, which may cause a feeling of disgust when the refrigerator door is opened, or the odors of other foods may transfer to the stored food, causing the food to emit various odors. It had the disadvantage of spoiling the flavor. Conventionally, activated carbon was placed inside the refrigerator and its adsorption properties were used to remove odors from inside the refrigerator. Because of this, it is difficult to determine whether the activated carbon has reached the saturated adsorption amount, and the activated carbon has to be replaced every short period of time.

<Purpose> Therefore, the present invention aims to provide a food storage facility having a deodorizing device that does not require frequent replacement for a short period of time, has an excellent deodorizing effect, and can be operated automatically only when necessary.

<Example> Hereinafter, an example of the present invention will be described based on the drawings. The deodorizing device B of the present invention is a two-door type, a three-door type, and a three-door type.
Although the present invention can be applied to door type refrigerators, four-door type refrigerators, etc., an embodiment applied to a three-door type refrigerator will be described in detail with reference to FIGS. 1, 2, and 3. Figure 1 is a sectional view of the main parts of the embodiment of the present invention;
The figure shows the electric circuit diagram, and Figure 3 shows the overall cross-sectional view. The installation location of the deodorizing device B is based on the flow of the refrigerator air D, which is circulating cold air, and the effective use of the space in the refrigerator compartment A. This is the back side of refrigerator compartment A (drain pipe insertion side). and,
In the refrigerator with a deodorizing device of the present invention, the deodorizing device B is
Between the chamber air (including odor) inflow hole 1 and the deodorized air exhaust hole 2, which are drilled in the case C, the ozone generator 3, ozone reaction chamber 4, and support plate 5a are attached and detached in order from the inflow hole 1 side. An ozone decomposition device 5 made of an ozone decomposition filter that can be inserted freely is provided, and a micro switch type power switch S (FIG. 2) is provided to control the operation/stop of the ozone generator 3. An airflow interlocking device E (damper thermostat device) is provided that turns on the power switch S only when there is a flow of indoor air D (including odor) flowing into the inflow hole 1 of the device B. .

The ozone generator 3 includes a flat high-voltage electrode 9 formed by bonding a borosilicate glass dielectric 7 to a stainless steel metal 6 with a silicone adhesive.
, a flat plate-shaped low voltage electrode 10 made of stainless steel metal, and an air gap 11 interposed between the dielectric 7 of these high voltage electrodes 9 and the low voltage electrode 10;
It is composed of a support frame 12 that supports both electrodes. A high voltage generator 15 for the ozone generator 3 is disposed at a location separated from the ozone generator 3 and the ozone decomposer 5 by a partition plate 14. 16 is an overcurrent fuse, 17 is a mesh shelf, 1
8 is a perishables tray, and 19 is a perishables chamber.

In addition, an evaporator 21 and a fan motor 2 are installed at the back of the freezer compartment 20 (Fig. 3) arranged above the refrigerator compartment A.
A cooling chamber 23 having 2 etc. is provided, the cooling chamber 2
A cold air descending passage 26 surrounded by heat insulating materials 24 and 25 is formed so as to connect the lower part of the refrigerator compartment A with the upper rear surface of the refrigerator compartment A.

The airflow interlocking device E includes a sensing section 27 made of a metal pipe whose tip is protruded so as to sense the temperature inside the refrigerator and is built into the heat insulating material 25, and the sensing section 2.
a granular activated carbon 29 that transmits the expansion of the gaseous fluorocarbon gas sealed in the refrigerator 7 to the copper alloy telescopic ring 28; a damper 30 that opens and closes the cold air descending path 26 according to the room temperature of the refrigerator compartment A; and a tip of the damper 30. a push plate 33 with a soft sealing material 32 pivotally attached to the damper 30 via a pin 31; a damper operating chamber 34 provided in the heat insulating material 25 so as to surround the base of the damper 30;
A spring adjustment shaft 35 supported by the chamber wall 34a of the working chamber 34, and a spring adjustment shaft 35 fitted into the lower part of the shaft 35 and
a compression coil spring 37 interposed between the damper base end 30c engaged with a part of the damper 4a and the upper support piece 36 of the shaft 35; child 38.

The electric circuit of this deodorizing device is constructed as shown in FIG. In other words, the commercial AC power source AC includes the high voltage electrode 9 and the low voltage electrode 1 of the ozone generator 3.
Transformer T for generating high voltage between 0, resistors R1, R2, R3, capacitors C1, C2,
A thyristor SCR and diodes D1 and D2 are connected.

Next, the operation will be explained mainly with reference to FIG. Various foods are delivered and arranged randomly in the refrigerator compartment A, and the room temperature is normally set at 3°C.
The room temperature of refrigerator compartment A changes as the refrigerator door opens and closes.
When the set equilibrium state is disrupted and the temperature rises by 0.5 to 1°C to 3.5 to 4°C, the sensing section 27 of the air flow interlocking device E detects the change in room temperature and detects the gas sealed inside the sensing section 27. The chlorofluorocarbon gas expands,
Granular activated carbon 29 housed in a cylindrical shape is
When a force is applied to push the copper alloy telescopic ring 28 in the right direction of the arrow while gradually pressurizing it in parallel with the absorption of the expanded fluorocarbon gas, the damper 30 from the closed position 30a moves to the open position 30b indicated by the dotted line. At this time, the pusher 38 of the damper 30 pushes the contact of the micro-switch type power switch S from the OFF side to the ON side as shown in FIG. away from the insulation material 24 on the chamber 19 side (maximum gap)
H4.6mm) Circulated cold air, that is, refrigerator air D, flows into the refrigerator compartment A through the cold air descent path 26. Then, when the internal air D, which is the circulating cold air that has flowed into the refrigerator compartment A, flows into the deodorizing device B through its inflow hole 1, a pulsed high voltage is applied between the high voltage electrode 9 and the low voltage electrode 10 from the high voltage generator 15. A silent discharge is generated between the two electrodes, and the oxygen contained in the passing indoor air D is changed into ozone, and the malodorous components are decomposed in the ozone reaction chamber 4. However, unreacted ozone is removed by the ozone decomposition device 5. decomposed into oxygen and carbon dioxide (2C+
2O ₃ →O ₂ +2CO ₂ ) and is exhausted from the outflow hole 2.

Next, the room temperature in refrigerator A drops to -2.5 below the set room temperature.
℃, the sensing part 27 of the air flow interlocking device E detects a decrease in the room temperature, and as a result of the volumetric contraction of the fluorocarbon gas sealed in the sensing part 27, the copper alloy telescopic ring 28 returns to the left direction of the arrow. The damper 30 also changes from the open position 30b indicated by the dotted line to the closed position indicated by the solid line.
30a, foamed polyethylene sealing material 3
2 comes into close contact with the heat insulating material 24 on the side of the perishables chamber 19, thereby blocking the circulating cold air, that is, the air D in the refrigerator.
At the same time, the micro switch type power switch S
Since the contact point is released from the presser 38 of the damper 30, the deodorizing device B is turned off and the deodorizing device B is stopped. By repeating the above operations, the deodorizing effect is achieved.

Next, to explain the operation of the electric circuit diagram in FIG.
1. Connected in series with diode D1. The damper 30 opens and the contacts of the power switch S open.
At the same time as it enters the ON side, the circulating cold air (internal air D) flows into the refrigerator compartment A, and the electric circuit becomes a closed circuit.
The deodorizing device B is now in operation. Then, during the positive half cycle of the sine wave voltage applied from the power supply AC, the capacitor C is connected via the resistor R1 and the diode D1.
2 is charged.

Also, a resistor R2 is connected to the negative half cycle of the sine wave voltage.
The capacitor C1 is charged through the resistor R3, and when the capacitor C2 reaches the switching voltage of the thyristor SCR, the voltage of the thyristor SCR is charged through the resistor R3.
The gate current flows, current flows through the primary coil t1 of the high voltage transformer T, and a pulse-like high voltage is generated in the secondary coil t2 of the high voltage transformer T. The generated pulsed high voltage is then transferred to the ozone generator 3.
Supplies both high voltage and low voltage electrodes.

Next, when the room temperature of the refrigerator compartment A decreases, the contact point of the switch S is opened from the pusher 38 of the blocked damper 30 and turned to the OFF side, the electric circuit is opened, the deodorizing device B is stopped, and ozone is generated. Device 3 also stops.

As described above, the deodorizing device B of this embodiment is
When the damper 30 of the air flow interlocking device E is opened, the ozone generator is operated by effectively utilizing the circulating cold air and the speed of the cold air, so it is more stable than the conventional activated carbon. In addition to providing a deodorizing effect, deodorizing device B does not require an electric blower to exhaust deodorized air, and the entire device can be made smaller and lighter.
Moreover, by replacing the ozone decomposition device 5, it can be used semi-permanently by replacing it every long period, and it can also exhibit excellent sterilizing action.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and it goes without saying that many modifications and changes can be made to the above-mentioned embodiments within the scope of the present invention. It can be installed not only in the refrigerator compartment, but also in the freezer compartment, vegetable compartment, perishables compartment, etc., and the air flow interlocking device is not limited to the one in the above example.
Some refrigerators have a structure that turns on the power switch when the wind pressure of the air flowing into the refrigerator compartment exceeds a certain value, and others have a structure that turns on the power switch when the wind pressure of the air flowing into the refrigerator compartment exceeds a certain value. It is also possible to use a temperature-responsive element that senses the inflow indirectly from the temperature of the refrigerator compartment.

<Effects> As is clear from the above explanation, the deodorizing device of the present invention includes an ozone generator, an ozone generator, An ozone decomposition device made of an ozone decomposition filter that is removably fitted into the reaction chamber and a support plate is disposed, and a power switch is provided to control the operation/stop of the ozone generator, and an inflow hole of the deodorization device is provided. The present invention relates to a food storage with a deodorizing device, characterized in that an airflow interlock device is provided that turns on the power switch only when a flow of air in the storage occurs.

Therefore, according to the present invention, since activated carbon is not used as in the past, there is no need to replace it every short period of time, and the deodorizing effect is excellent, and furthermore, the deodorizing device has a deodorizing device that can be operated automatically only when necessary due to the function of the air flow interlocking device. There is an effect that food storage can provide.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of essential parts of a refrigerator according to an embodiment of the present invention, FIG. 2 is an electric circuit diagram thereof, and FIG. 3 is a sectional view of the entire refrigerator. A: Refrigerator, B: Deodorizing device, C: Case, D:
Internal air, E: Air flow interlocking device, S: Power switch, 1: Inflow hole, 2: Deodorized air discharge hole, 3: Ozone generator, 4: Ozone reaction chamber, 5: Ozone decomposition device, 5a: Support plate , 20: Freezing room, 21: Evaporator, 22: Fan motor, 23: Cooling room, 24,
25: Heat insulating material, 26: Cold air descent path, 27: Sensing section, 28: Expandable ring, 29: Granular activated carbon, 3
0: Damper, 30c: Damper base end, 31: Pin, 32: Soft sealing material, 33: Push plate, 34: Damper operation chamber, 34a: Chamber wall, 35: Spring adjustment shaft, 36: Support piece, 37: Compression Coil spring, 38:
presser.

Claims (1)

[Scope of utility model registration request] The deodorizing device consists of an ozone generator, an ozone reaction chamber, and an ozone decomposition filter that is removably fitted into the base plate between the internal air inlet hole and the deodorized air outlet hole drilled in the case, in order from the inlet hole side. ozone decomposition equipment made by the manufacturer, and a power switch for controlling the operation/stop of the ozone generator, and the power supply switch is installed only when a flow of air in the refrigerator flowing into the inflow hole of the deodorizing equipment occurs. A food storage with a deodorizing device characterized by being equipped with an airflow interlocking device that turns on a switch.